对不同遗传背景小鼠的超数排卵效果和体外受精率进行比较研究，以探索建立不同遗传背景小鼠资源冷冻胚胎库的方法。
To comparative studies on ova superovulated and in vitro fertilization in various genetic background mouse strains, and to explore avenue of establishing the embryo bank in individual mouse genotypes.
最近的研究表明，COX-2基因敲除小鼠的生殖缺陷主要依赖小鼠的遗传背景，与小鼠的品系相关。
However, it was recently shown that the reproductive defects of COX-2-deficient mice mainly depend upon genetic background of the mouse strains.
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